The Eval function takes a single argument, evaluates it as a
VBScript expression, and returns the result of this evaluation.

If the expression is of the form a = b, it is treated as an equality
comparison. If the comparison is true, then True is returned. Otherwise,
False is returned.

There is a statement, Execute, which is similar in operation to the
Eval function. Execute differs in that it interprets a string
expression as one or a series of statments to be executed, and in
the fact that it does not return a value.